<template>
  <div>
    <!-- 面包屑导航栏 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片 视图 -->
    <el-card class="box-card">
      <!-- 搜索框 -->
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>

      <!-- 用户列表 -->
      <el-table :data="userList" style="width: 100%" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column
          prop="username"
          label="姓名"
          width="180"
        ></el-table-column>
        <el-table-column
          prop="email"
          label="邮箱"
          width="180"
        ></el-table-column>
        <el-table-column
          prop="mobile"
          label="电话"
          width="180"
        ></el-table-column>
        <el-table-column
          prop="role_name"
          label="角色"
          width="180"
        ></el-table-column>
        <el-table-column label="状态" width="180">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChange(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
            <!-- {{ scope.row }} -->
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              circle
              size="small"
              class="tableOption"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              class="item"
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                circle
                size="small"
                class="tableOption"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              circle
              size="small"
              class="tableOption"
              @click="removeUserById(scope.row.id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>

      <!-- 分页栏 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 对话框内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 用户编辑的对话框 -->
    <el-dialog
      title="用户编辑"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <!-- 对话框内容主体区域 -->
      <el-form
        :model="editForm"
        :rules="editFormRules"
        ref="editFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <!-- 对话框内容主体区域 -->
      <div>
        <p>当前用户: {{ userInfo.username }}</p>
        <p>当前角色: {{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    var checkPhone = (rule, value, callback) => {
      const phoneReg = /^1[3|4|5|7|8][0-9]{9}$/;
      if (!value) {
        return callback(new Error("电话号码不能为空"));
      }
      setTimeout(() => {
        // Number.isInteger是es6验证数字是否为整数的方法,但是我实际用的时候输入的数字总是识别成字符串
        // 所以我就在前面加了一个+实现隐式转换

        if (!Number.isInteger(+value)) {
          callback(new Error("请输入数字值"));
        } else {
          if (phoneReg.test(value)) {
            callback();
          } else {
            callback(new Error("电话号码格式不正确"));
          }
        }
      }, 100);
    };
    var checkEmail = (rule, value, callback) => {
      const mailReg = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/;
      if (!value) {
        return callback(new Error("邮箱不能为空"));
      }
      setTimeout(() => {
        if (mailReg.test(value)) {
          callback();
        } else {
          callback(new Error("请输入正确的邮箱格式"));
        }
      }, 100);
    };
    return {
      //获取用户列表参数对象
      queryInfo: {
        query: "",
        pagenum: 1,
        pagesize: 5,
      },
      userList: [],
      // 需要被分配权限的用户
      userInfo: {},
      // 所有角色列表
      rolesList: [],
      // 已选中的角色ID
      selectedRoleId: '',
      total: 0,
      // 控制添加用户对话框的显示
      addDialogVisible: false,
      // 控制用户编辑对话框的显示
      editDialogVisible: false,
      // 控制分配角色对话框的显示
      setRoleDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      // 用户编辑的表单数据
      editForm: {},
      // 控制用户表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "用户名长度在3~10字符之间",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "用户名长度在6~15字符之间",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkPhone, trigger: "blur" },
        ],
      },
      // 用户编辑表单的验证规则对象
      editFormRules: {
        email: [
          { required: true, message: "请输入邮箱", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkPhone, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200)
        return this.$message.error("获取用户列表失败");
      this.userList = res.data.users;
      this.total = res.data.total;
      //   console.log(res);
    },
    // 监听pageSize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      this.getUserList();
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
    },
    async userStateChange(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("更新用户状态失败");
      }
      this.$message.success("更新状态成功");

      // console.log(res);
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields();
    },
    // 监听编辑用户对话框的关闭事件
    editDialogClosed() {
      this.$refs.editFormRef.resetFields();
    },
    // 添加新用户 提交处理
    addUser() {
      // 验证通过 发起添加用户请求
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("users", this.addForm);

        if (res.meta.status !== 201) {
          return this.$message.error("添加用户失败");
        } else {
          this.$message.success("添加用户成功");
        }

        this.addDialogVisible = false;
        this.getUserList();
      });
    },
    // 编辑用户 提交处理
    editUserInfo() {
      this.$refs.editFormRef.validate(async (valid) => {
        if (!valid) return;
        //  提交数据请求
        const { data: res } = await this.$http.put(
          `users/${this.editForm.id}`,
          {
            email: this.editForm.email,
            mobile: this.editForm.mobile,
          }
        );

        if (res.meta.status !== 200)
          return this.$message.error("更新用户信息失败");
        // 关闭对话框
        this.editDialogVisible = false;
        // 刷新数据列表
        this.getUserList();
        // 提示修改成功
        this.$message.success("更新用户信息成功");
      });
    },
    // showEditDialog->展示编辑用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get(`users/${id}`);
      if (res.meta.status !== 200)
        return this.$message.error("查询用户信息失败!");
      this.editForm = res.data;
      // console.log(res);
      this.editDialogVisible = true;
    },
    // 删除用户
    async removeUserById(id) {
      // 弹框询问 用户是否删除
      const confirmResult = await this.$confirm(
        "此操作将永久删除该用户, 是否继续?",
        "确认",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);

      if (confirmResult !== "confirm") {
        return this.$message.info("已取消操作");
      }
      const { data: res } = await this.$http.delete(`users/${id}`);
      // console.log(res);
      if (res.meta.status !== 200) return this.$message.error("删除用户失败");
      this.$message.success("删除用户成功");
      this.getUserList();

      // console.log(confirmResult)
    },
    // 分配角色
    async setRole(userInfo) {
      this.userInfo = userInfo;
      // 获取所有角色列表
      const { data: res } = await this.$http.get(`roles`);
      if (res.meta.status !== 200)
        return this.$message.error("获取角色列表失败");
      this.rolesList = res.data;
      this.setRoleDialogVisible = true;
    },
    // 确定分配角色
    async saveRoleInfo(){
      if(!this.selectedRoleId) return this.$message.error("请选择要分配的角色!")

      const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
        rid: this.selectedRoleId
      })
      if(res.meta.status !== 200) return this.$message.error("更新角色失败!")

      this.$message.success('更新角色成功');
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    // 监听角色分配对话框的关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId = '';
      this.userInfo = {};
    }
  },
};
</script>

<style lang="less" scoped>
.tableOption {
  margin-left: 10px;
}

.el-pagination {
  margin-top: 15px;
}
</style>